login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A248190 Decimal expansion of Dedekind eta(I/2). 4
8, 3, 7, 7, 5, 5, 7, 6, 3, 4, 7, 6, 5, 9, 8, 0, 5, 7, 9, 1, 2, 3, 6, 5, 9, 9, 7, 0, 0, 3, 2, 1, 2, 3, 7, 5, 6, 8, 3, 0, 6, 1, 5, 8, 0, 8, 9, 5, 1, 3, 9, 1, 5, 0, 6, 1, 9, 7, 4, 5, 2, 1, 0, 8, 4, 6, 3, 4, 8, 8, 4, 3, 0, 2, 5, 0, 7, 3, 9, 3, 0, 0, 2, 6, 1, 4, 2, 4, 5, 6, 4, 9, 2, 7, 5, 3, 8, 2, 9, 7, 6, 2, 9, 5, 7, 0 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

See A091343.

LINKS

Stanislav Sykora, Table of n, a(n) for n = 0..2000

Wikipedia, Dedekind eta function

FORMULA

eta(I/2) = 2^(1/8)*eta(I) = 2^(1/8)*Gamma(1/4)/(2*Pi^(3/4)) =  2^(1/8)*A091343.

EXAMPLE

0.837755763476598057912365997003212375683061580895139150619745210...

MATHEMATICA

RealDigits[2^(1/8)*Gamma[1/4]/(2*Pi^(3/4)), 10, 120][[1]] (* Vaclav Kotesovec, Oct 04 2014 *)

PROG

(PARI) eta(I/2, 1)

CROSSREFS

Cf. A091343 (eta(I)), A248191, A248192.

Sequence in context: A131654 A241243 A033990 * A099284 A061444 A011214

Adjacent sequences:  A248187 A248188 A248189 * A248191 A248192 A248193

KEYWORD

nonn,cons,easy

AUTHOR

Stanislav Sykora, Oct 03 2014

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified July 24 18:02 EDT 2017. Contains 289776 sequences.